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Food for thought
I had read where the GM 10-1/2" FF ring and pinion are virtually as strong as GM's newest AAM-1150. The AAM-1150's rear pinion bearing is ahead of the gears, where the 10-1/2 rear pinion bearing is behind. The GM 10-1/2" 14-bolt axle has held up well behind a beefed Cummins - the NV4500 is another story.
Where the AAM1150 is better is in GAWR, its larger mass and larger lube capacity. This might mean it would be better at handling higher loads for longer durations in high heat environments.
Jim
Last edited by More Power; 01-03-2007 at 22:52.
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